Note: This is another one of those slokas in which
Shankara dominates the translations. It appears to me that he used the analogy
of the winking of an eye to illustrate the actual analogy given in the sloka
itself of a flash of lightning lit and then closed. But almost all translations
incorporate Shankara’s illustration into the text itself. I can’t see it that
way. What I do see is the importance of this understanding: That is seen in a
flash of lightning; That is the flash of lightning; That lights the flash of
lightning; and the flash of lightning is the sudden nature of enlightenment.